<template>
  <div>
    <table border="1" width="700" style="border-collapse: collapse">
      <caption>
        Shopping
      </caption>
      <thead>
        <tr>
          <th><input type="checkbox" v-model="isAll" /> <span>全选</span></th>
          <th>名称</th>
          <th>价格</th>
          <th>数量</th>
          <th>总价</th>
          <th>操作</th>
        </tr>
      </thead>
      <tbody>
        <GouBody
          v-for="(item, index) in goodList"
          :key="index"
          :name="item.name"
          :price="item.price"
          :num="item.num"
          :checked="item.checked"
          :index="index"
          @del="delFn"
          @add="addFn"
          @inc="incFn"
          @change="changeFn"
        />
      </tbody>
      <tfoot>
      <GouFoot :goodList="goodList" />
  
      </tfoot>
    </table>
  </div>
</template>
<script>
import GouFoot from  './components/GouFoot.vue'
import GouBody from './components/GouBody.vue'
export default {
  components: {
    GouBody,
    GouFoot,
  },
  data() {
    return {
      goodList: [
        {
          name: '诸葛亮',
          price: 1000,
          num: 1,
          checked: false,
        },
        {
          name: '蔡文姬',
          price: 1500,
          num: 1,
          checked: false,
        },
        {
          name: '妲己',
          price: 2000,
          num: 1,
          checked: false,
        },
        {
          name: '鲁班',
          price: 2200,
          num: 1,
          checked: false,
        },
      ],
    }
  },
  methods: {
    delFn(index) {
      this.goodList.splice(index, 1)
    },
    addFn(index) {
      this.goodList[index].num++
    },
    incFn(index) {
      this.goodList[index].num--
    },
    changeFn(checked, index) {
      this.goodList[index].checked = checked
    },
  },
  computed: {
    isAll: {
      get() {
        return this.goodList.every((item) => item.checked)
      },
      set(val) {
        console.log(val)
        this.goodList.forEach((item) => (item.checked = val))
      },
    },
  },
}
</script>

<style></style>
